I did these all about a week ago when I was having a bit of an art block. Doodling always helps me get back into the groove. Changing from digital to traditional and vice-versa helps too.
I didn't like this Pokémon at first but now that I've seen the official artwork instead of just the tiny sprite I think it's cute. It is known as the Amplification Pokémon and I think it's psychic but that doesn't matter because you can never have enough cute green pokes.
I don't even know what this is. XD
These are 'advanced' shadow monsters. I guess either older versions or more evolved or something? I didn't think about it very much.
I like the orange one the best.